Data & Code

1. Li (2025), Investment Bank Consolidation and Municipal Finance.
   • GitHub repository
   • Hand-collected sample of M&As among municipal bond underwriters, 1970-2022
2. Gertler, Green, Li, & Sraer (2025), The Welfare Benefits of Pay-As-You-Go Financing.
   • Reusable files:
     • “randsample_gpu.m”: A GPU-accelerated version of Matlab’s stats/randsample function
     • “simulate_gpu.m”: A GPU-accelerated version of Matlab’s econ/dtmc.simulate function
     • “SMM_rs0_global1.m, SMM_rs0_local.m”: A working example of TikTak Global Optimizer in Matlab
3. Gopalan, Li, & Žaldokas (2025), Board Connections, Firm Profitability, and Product Market Actions.
   • Reusable files:
     • “Match_BoardEx_UPCPrefix.ipynb”: Codes for the matching between GS1 (i.e., UPC prefixes) and BoardEx by firm name